Air purification filter element and automobile
By combining a water negative ion generator with an air conditioning filter and using a formaldehyde sensor to control the negative ion generator, the problem of excessive formaldehyde in the car is solved, achieving efficient air purification and reduced maintenance costs.
Patent Information
- Application Number
- CN202422067266.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-08-26
AI Technical Summary
Existing technologies are insufficient to effectively address the problem of excessive formaldehyde levels in vehicles, leading to health risks and driving safety hazards.
By combining a water negative ion generator with a regular air conditioner filter and adding a formaldehyde sensor, the water negative ion generator decomposes formaldehyde, and the working time of the negative ion generator is controlled according to the formaldehyde concentration. Combined with a HEPA filter, particulate matter is filtered out.
It effectively decomposes formaldehyde and filters particulate matter, improving in-vehicle air quality, reducing maintenance costs, and ensuring a healthy and comfortable driving environment.
Smart Images

Figure CN223533306U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air purification, specifically to an air purification filter and an automobile. Background Technology
[0002] With the increasing awareness of health in car cabins, the question of whether new cars contain excessive formaldehyde has gradually become a key concern for car buyers. Excessive formaldehyde is harmful to health and driving safety, easily triggering allergic reactions, reducing immunity, and potentially causing birth defects in pregnant women. Excessive formaldehyde can also lead to mood swings, poor concentration, and slowed reaction time in drivers, seriously threatening driving safety. Therefore, solving the problem of excessive formaldehyde in car interiors is crucial to improving in-vehicle air quality.
[0003] Existing solutions include purchasing environmentally friendly interior materials, ventilating the vehicle, placing activated carbon bags, and planting purifying plants to reduce formaldehyde concentration inside the car. However, these methods are limited by consumer preferences and the space inside the car, and therefore cannot completely solve the problem of excessive formaldehyde levels inside the car. Utility Model Content
[0004] This invention addresses the problem of excessive formaldehyde levels in vehicles by providing an air purification filter and a vehicle. The air purification filter combines a water negative ion generator with a standard air conditioning filter, enabling the improved filter to perform both particulate matter filtration and formaldehyde decomposition functions, significantly improving in-vehicle air quality and creating a healthy and comfortable driving environment.
[0005] The objective of this utility model can be achieved through the following technical solutions:
[0006] One of the objectives of this utility model is to provide an air purification filter element, including a filter element and a water negative ion generator disposed on the air outlet surface of the filter element; the water negative ion generator is also provided with a formaldehyde sensor.
[0007] Furthermore, the water negative ion generating device includes a housing and a water negative ion generator disposed within the housing.
[0008] Furthermore, the housing includes a lower shell and an upper shell; the lower shell and the upper shell together form a cavity, and the water negative ion generator is disposed in the cavity; the formaldehyde sensor is installed on the lower shell.
[0009] Furthermore, the water negative ion generator is also equipped with a connecting wire and a power supply interface; one end of the connecting wire passes through the upper shell and is connected to the water negative ion generator, and the other end is connected to the power supply interface.
[0010] Furthermore, the lower shell and the upper shell are snap-fitted or bolted together.
[0011] Furthermore, the lower shell is detachably connected to the filter element.
[0012] Furthermore, the lower shell is provided with a clip that engages with the filter element.
[0013] Furthermore, the filter element is a HEPA filter element.
[0014] Furthermore, the water negative ion generator is positioned directly opposite the air outlet of the filter element.
[0015] The second objective of this utility model is to provide an automobile that includes the air purification filter element described above.
[0016] Compared with the prior art, the present invention has the following advantages:
[0017] (1) This utility model provides an air purification filter element, which, compared with ordinary air conditioning filter elements, adds the functions of decomposing formaldehyde, sterilizing and removing viruses; and the filter element of this utility model is equipped with a formaldehyde sensor, which controls the working time of the water negative ion generator by detecting the formaldehyde concentration, saving energy and extending the service life of the water negative ion generator.
[0018] (2) This utility model provides an air purification filter element. The maintenance cost of the filter element is reduced. Compared with the activated carbon air conditioning filter element that adsorbs or decomposes formaldehyde, which needs to be replaced as a whole, the water and negative ion generating device does not need to be replaced. Only the ordinary filter element needs to be replaced. Attached Figure Description
[0019] Figure 1 A schematic diagram of the air purification filter element provided by this utility model;
[0020] Figure 2 This is a schematic diagram of the filter element of this utility model;
[0021] Figure 3 This is a schematic diagram of the water negative ion generator of this utility model;
[0022] The numbers in the diagram indicate: 1-Filter element; 2-Clip; 3-Lower shell; 4-Formaldehyde sensor; 5-Water negative ion generator; 6-Upper shell; 7-Connecting cable; 8-Power interface. Detailed Implementation
[0023] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are implemented based on the technical solution of the present invention, providing detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.
[0024] Unless otherwise specified in this technical solution, the component model, material name, connection structure, control method, and other features are considered to be common technical features disclosed in the prior art.
[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integrated connection; they can refer to a bolted connection or a welded connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Example 1
[0028] To address the issue of excessive formaldehyde levels in vehicle interiors, this embodiment provides an air purification filter element; see [link to specific structure] for details. Figure 1-3 The system includes a filter element 1 and a water negative ion generator disposed on the air outlet surface of the filter element 1. The water negative ion generator is also equipped with a formaldehyde sensor 4. Preferably, the filter element 1 is a HEPA filter element; the water negative ion generator is positioned directly opposite the air outlet surface of the filter element 1.
[0029] Please see again. Figure 1 As shown, in this embodiment, the water negative ion generating device includes a housing and a water negative ion generator 5 disposed inside the housing. The water negative ion generator 5 electrolyzes to generate nano water ions and negative oxygen ions.
[0030] Please see again. Figure 1 As shown, in this embodiment, the housing includes a lower shell 3 and an upper shell 6; the lower shell 3 and the upper shell 6 surround to form a cavity, and the water negative ion generator 5 is disposed in the cavity; the formaldehyde sensor 4 is installed on the lower shell 3.
[0031] Please see again. Figure 1 As shown, in this embodiment, power is supplied to the water negative ion generator 5. The water negative ion generator is also equipped with a connecting wire 7 and a power input interface 8. One end of the connecting wire 7 passes through the upper shell 6 and is connected to the water negative ion generator 5, and the other end is connected to the power input interface 8. Optionally, the lower shell 3 and the upper shell 6 are snap-fitted or bolted together.
[0032] Please see again. Figure 1As shown, in this embodiment, the lower shell 3 and the filter element 1 are detachably connected. Preferably, the lower shell 3 is provided with a clip 2 that engages with the filter element 1 to fix the lower shell 3 and the filter element 1.
[0033] The working principle of the air purification filter element in this embodiment is as follows:
[0034] The water negative ion generator 5 of the water negative ion generator produces nano-water ions and negative oxygen ions after being powered on. Water ions exhibit a weak negative charge, creating a negative ion environment in their vicinity can protect them from interference by positive ions in the environment, preventing annihilation. When the car's internal air circulation is on, the air inside the car passes through filter 1. The water negative ion generator 5 is located on the clean side (air outlet) of filter 1, and can continuously and stably decompose formaldehyde, significantly reducing the formaldehyde concentration in the cabin air and successfully improving the air quality inside the car. Simultaneously, in this embodiment, the air purification filter is integrated with a formaldehyde sensor 4, located on the clean side (air outlet) of filter 1. If the formaldehyde concentration detected is higher than 0.08 mg / m³, the sensor will detect the formaldehyde concentration. 3 During operation, the water negative ion concentration remains active. If it is below 0.08 mg / m³... 3 The negative ion generator runs for a period of time after being turned on, then turns off to maintain the formaldehyde concentration inside the car below 0.08 mg / m³. 3 .
[0035] Example 2
[0036] This embodiment provides a car that includes the air purification filter element described in Embodiment 1.
[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.
Claims
1. An air purification filter element, characterized in that, It includes a filter element (1) and a water negative ion generator disposed on the air outlet surface of the filter element (1); The water negative ion generator is also equipped with a formaldehyde sensor (4). The filter element (1) is a HEPA filter element.
2. The air purification filter element according to claim 1, characterized in that, The water negative ion generating device includes a housing and a water negative ion generator (5) disposed inside the housing.
3. An air purification filter element according to claim 2, characterized in that, The housing includes a lower shell (3) and an upper shell (6); The lower shell (3) and the upper shell (6) surround each other to form a cavity, and the water negative ion generator (5) is disposed in the cavity; the formaldehyde sensor (4) is installed on the lower shell (3).
4. An air purification filter element according to claim 3, characterized in that, The water negative ion generator is also equipped with a connecting line (7) and a power interface (8). One end of the connecting line (7) passes through the upper shell (6) and is connected to the water negative ion generator (5), and the other end is connected to the power input interface (8).
5. An air purification filter element according to claim 3, characterized in that, The lower shell (3) and the upper shell (6) are snap-fitted or bolted together.
6. An air purification filter element according to claim 3, characterized in that, The lower shell (3) is detachably connected to the filter element (1).
7. An air purification filter element according to claim 3, characterized in that, The lower shell (3) is provided with a clip (2) that engages with the filter element (1).
8. An air purification filter element according to claim 1, characterized in that, The water negative ion generator is positioned directly opposite the air outlet of the filter element (1).
9. A car, characterized in that, Includes the air purification filter element as described in any one of claims 1-8.